Can sit-to-stand muscle power explain the ability to perform functional tasks in adults with severe obesity?

This study examined the relationship between sit-to-stand (STS) power and physical function in adults with severe obesity. Thirty-eight adults (age: 44 ± 12 years; body mass index [BMI]: 45.2 ± 7.8 kg/m²) completed evaluations of STS power, strength and functional performance. STS power was measured with a wearable inertial sensor, strength was assessed with the isometric mid-thigh pull, and function was measured with the timed up-and-go (TUG), six-minute walk test (6MWT) and 30-s chair STS. Power and strength (normalised to body mass) entered regression models in addition to age, gender, BMI and physical activity (daily step count). Power displayed large univariate associations with TUG (r = 0.50) and 30-s chair STS (r = 0.67), and a moderate association with 6MWT (r = 0.49). Forward stepwise regression revealed that power independently contributed to TUG (β = ?0.40, p = 0.010), 30-s chair STS (β = 0.67, p < 0.001) and 6MWT performance (β = 0.27, p = 0.007). Power also appeared to be a superior determinant of function compared with strength. Power generated via the STS transfer largely underpins the ability to perform functional tasks in adults with severe obesity, although intervention studies are required to investigate a potentially causal relationship.     

Sports History: Reflections on My Journey So Far

Abstract

In this article, I reflect on my journey into sports history and my career path so far. I also discuss my experiences as part of the British Society of Sports History.     

Policy discourse analysis: negotiating gender equity

This analysis of activists' and bureaucrats' politicking for gender policy in Australia demonstrates the utility of discourse analysis. Feminist policy initiatives are special: they challenge hegemony and they circulate counter discourse. Policy elites try to manage and discredit them. Traditional policy frameworks are used to identify policy with policy mechanisms, policy communities, value shifts and the like. But the use of policy discourse analysis for this Australian story elicits key strategies for constructing and managing a counter narrative and maintaining a counter public of outsiders using insiders to institutionalize gender policies even as equity and social justice value priorities recede.     

重构中的图书馆软件产业

2005年图书馆软件行业的重新洗牌,昭示了如今的风云变幻、吐故纳新乃至沧桑巨变。2006年图书馆集成管理系统(ILS)产业稳步发展,总收入从2005年的大约5.35亿美元提高到了2006年的5.7亿美元。一些公司ILS核心产品的收入在减少,而基于Web界面和电子内容管理的新产品收入在增加。无